Question

3.
When knowledge is not free, what will be the impact?​

Answer 1

Explanation:

Electromagnetic or magnetic induction is the production of an electromotive force across an electrical conductor in a changing magnetic field. Michael Faraday is generally credited with the discovery of induction in 1831, and James Clerk Maxwell mathematically described it as Faraday's law of induction. Wikipedia

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Answer 2

Answer:

if knowledge is not for free then we can't do anything. Knowledge helps us to do even a small thing. if that is absent then we are absent